ReactOS  0.4.14-dev-115-g4576127
USendto.c
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1 #include "syshdrs.h"
2 
3 #if !defined(NO_UNIX_DOMAIN_SOCKETS) && !defined(NO_SIGNALS)
4 
5 extern volatile Sjmp_buf gNetTimeoutJmp;
6 extern volatile Sjmp_buf gPipeJmp;
7 
8 int
9 USendto(int sfd, const char *const buf, size_t size, int fl, const struct sockaddr_un *const toAddr, int ualen, int tlen)
10 {
11  int nwrote, tleft;
12  vsio_sigproc_t sigalrm, sigpipe;
13  time_t done, now;
14 
15  if (SSetjmp(gNetTimeoutJmp) != 0) {
16  alarm(0);
17  (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
18  (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
19  errno = ETIMEDOUT;
20  return (kTimeoutErr);
21  }
22 
23  if (SSetjmp(gPipeJmp) != 0) {
24  alarm(0);
25  (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
26  (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
27  errno = EPIPE;
28  return (kBrokenPipeErr);
29  }
30 
31  sigalrm = (vsio_sigproc_t) SSignal(SIGALRM, SIOHandler);
33 
34  time(&now);
35  done = now + tlen;
36  tleft = (int) (done - now);
37  forever {
38  (void) alarm((unsigned int) tleft);
39  nwrote = sendto(sfd, buf, size, fl,
40  (struct sockaddr *) toAddr, ualen);
41  (void) alarm(0);
42  if (nwrote >= 0)
43  break;
44  if (errno != EINTR)
45  break; /* Fatal error. */
46  errno = 0;
47  time(&now);
48  tleft = (int) (done - now);
49  if (tleft < 1) {
50  nwrote = kTimeoutErr;
51  errno = ETIMEDOUT;
52  break;
53  }
54  }
55 
56  (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
57  (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
58 
59  return (nwrote);
60 } /* USendto */
61 
62 #endif
63 
#define EPIPE
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__u16 time
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_In_ FLONG fl
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int USendto(int, const char *const, size_t, int, const struct sockaddr_un *const, int, int)
GLsizeiptr size
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#define SIGPIPE
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